SWA000073_JFHQ Raleigh Helipad_20200721

© 2018 Microsoft Corporation © 2018 HERE
JOB NO.
SHEET NO.
SCALE
DESIGNED BY
CHECKED BYDATEDRAWN BY
DATEREVISION DESCRIPTIONYOUR VISION ACHIEVED THROUGH OURS.5410 Trinity Road, Suite 102 | Raleigh, NC 27607TEL [phone] FAX [phone] www.timmons.comTHIS DRAWING PREPARED AT THERALEIGH OFFICEN O R T H C A R O L I N
AP R O F E S S I O N A
LE N G I N E E R
0 3 3 6 1 2N O R T H C A R O L I N
AP R O F E S S I O N A
LE N G I N E E RN O R T H C A R O L I N
AP R O F E S S I O N A
LE N G I N E E RN O R T H C A R O L I N
AP R O F E S S I O N A
LE N G I N E E R
S E A LN O R T H C A R O L I N
AP R O F E S S I O N A
LE N G I N E E RN O R T H C A R O L I N
AP R O F E S S I O N A
LE N G I N E E RN O R T H C A R O L I N
AP R O F E S S I O N A
LE N G I N E E RF R A N C I S S L I N S K Y, I I I24 JULY 2020
NORTH CAROLINA NATIONAL GUARD JFHQ RALEIGH HELIPAD1636 GOLD STAR DRIVE, SUITE 2600, RALEIGH, NORTH CAROLINA 27607 | NCSCO CASE #: 17-16713-01A42866
WA
FS
FS
NTS
NORTH CAROLINA LICENSE NO. C-16526/24/20
STORMWATER FAST TRACK ATC SUBMITTAL06/24/2020CS0.0 COVER SHEETINDEX OF DRAWINGS
C1.0
C3.0
EXISTING CONDITIONS & DEMOLITION PLAN
SCHEDULE OF MATERIAL TESTING SERVICES
MATERIAL TESTING BY THIRD PARTY
Verification of Soils
Excavation and Fill
Piling and Drilling Piers
Modular Retaining Walls
Reinforced Concrete
Post Tension Slab
Pre-cast Concrete Erection
Pre-stressed Concrete
Inspection of Pre-cast Fabricators
Structural Masonry
Inpection of Structural Steel Fabricators
Welding
High Strength Bolts and Steel Framing Insp.
Sprayed Fire-Resistance Materials
Exterior Insulation and Finish System
Seismic Resistance
Smoke Control
Detention Basin
Asphalt Pavement Cores and Density Tests
The following sheets comprise the required schedule of material testing services in this project. The construction items
to be inspected are as follows:
No special inspections required for this project
STAKING PLAN
C5.0 EROSION & SEDIMENT CONTROL NOTES & DETAILS
C5.1
SITE
C5.2
C5.3
C5.4 SITE NOTES & DETAILS
C3.5
GRADING & DRAINAGE PLAN
C2.0 EROSION & SEDIMENT CONTROL PLAN PHASE I
NORTH CAROLINA NATIONAL GUARD
JFHQ RALEIGH HELIPAD
1636 GOLD STAR DRIVE, SUITE 2600, RALEIGH, NORTH CAROLINA 27607
NCSCO CASE #: 17-16713-01A
STORMWATER SUBMITTAL
PROJECT TEAM
CONTACT: MR. JOSEPH SHELL
DELTA AIRPORT CONSULTANTS
AVIATION CONSULTANT & ELECTRICAL ENGINEER
PHONE: [phone]
1750 E. INTERNATIONAL DRIVE, SUITE 3
RALEIGH, NC 27623
CIVIL ENGINEER
TIMMONS GROUP
RALEIGH, NC 27607
5410 TRINITY ROAD, SUITE 102
CONTACT: MR. FRANK SLINSKY
PHONE: [phone]
VICINITY MAP
1"=1000'
OWNER
CONTACT: MR. ROBERT BRYANT
NORTH CAROLINA NATIONAL GUARD
OWNER
PHONE: [phone]
1636 GOLD STAR DRIVE, SUITE 2600
RALEIGH, NC 27607
C2.1 EROSION & SEDIMENT CONTROL PLAN PHASE II
C3.1 GEOMETRIC LAYOUT (BASE BID)
C3.3 PCC JOINT LAYOUT (BASE BID)
MARKING LAYOUT
C4.0
C5.5 SITE NOTES & DETAILS
C5.6 SITE NOTES & DETAILS
C5.7 BIORETENTION NOTES & DETAILS
C6.0 JOINT DETAILS
C6.1 JOINT DETAILS
C6.2 JOINT DETAILS
C6.3 JOINT DETAILS
C6.4 JOINT DETAILS
C7.0 MARKING DETAILS
C7.1 AIRCRAFT MOORING DETAILS
E1.0 ELECTRICAL NOTES
E1.1 ELECTRICAL NOTES
E2.0 SITE ELECTRICAL PLAN (BASE BID)
E2.2 BUILDING ELECTRICAL PLAN
E3.0 BUILDING SECTION
E4.0 ELECTRICAL DETAILS
E4.1 ELECTRICAL DETAILS
E4.2 ELECTRICAL DETAILS
E4.3 ELECTRICAL DETAILS
E4.4 ELECTRICAL DETAILS
E4.5 ELECTRICAL DETAILS
E4.6 ELECTRICAL DETAILS
E4.7 ELECTRICAL DETAILS
E4.8 ELECTRICAL DETAILS
E4.9 ELECTRICAL DETAILS (ALTERNATE 4)
E4.10 ELECTRICAL DETAILS
SITE CIVIL
ELECTRICAL
EROSION & SEDIMENT CONTROL NOTES & DETAILS
EROSION & SEDIMENT CONTROL NOTES & DETAILS
EROSION & SEDIMENT CONTROL NOTES & DETAILS
C5.8 CABLE BARRIER NOTES & DETAILS
CS0.0 COVER SHEET
GENERAL
C3.4 PCC JOINT LAYOUT (ALTERNATE 1)
C3.2 GEOMETRIC LAYOUT (ALTERNATE 1)
E2.1 SITE ELECTRICAL PLAN (ALTERNATE 2, 3, & 4)
SHEETS INCLUDED IN STORMWATER SUBMITTAL
C4.1 STORMWATER MANAGEMENT PLAN
425
430
435
440
445
445421422
423
424
426
427
428
429
431
432
433
434
436
437
438
439
441
442
443
4444204254304354174184194214224
2
3
424426427428429431432433434436
437
438
400
405
410
415
420
396
397398399
401
402
403
404
406407408
409
411412413414
416
417
418
419
421
410
415
420
425
406407408409 411 412 413 414 416417418419
421 422 423 424 426 427 428 429
4
3
0
4
3
5
440
445
4274284
2
9
4
3
1
4
3
2
4
3
3
4
3
4
4
3
6
4
3
7
4
3
8
4
3
9
4
4
1
4
4
2
443
444 4464474484404454504414424434444464474484494514254304354404264274
2
8
429431432433434436437438439441442443444
4
0
0
40541
039739
8
3
9
9
4
0
1
4
0
2
4
0
3 40440640
7
40
8
40
9
41
1
4
0
0 4054104154204254304354404454504
0
1
4
0
2 4034044
0
6
4
0
7
4
0
8
4
0
9 411412413414416417418419421422423424426427428429431432433434436437438439441442443444446447448449451390
3
9
5
400
390390390395393392391390389388393395397396395396398397399
395395396 398
39839639539439
1
3
9
1
3
9
3
392391392390
392400
405
410
394
390
389
387
386387390398396
394
400
396403410415395400405
400
425
427
4324
3
0
42242
0
41
7
41
0
43
4391392XXXXX OHP
LOCALIZATION POINT
NC GRID (NAD 83/NSRS2007)
N=748569.73'
E=2085686.64'
NAVD '88 ELEV. = 448.83'
COMBINED FACTOR = 0.999902990
(SEE NOTE NO. 6)
CONTROL POINT (REBAR & CAP)
G
G
G
G
G
G
G
G
G
G
G
G
G
G G
G
UGT
UCATV
UCATV
UCATV
UCATV
UCATV
UFO
UFO
UFO
UFO
UFO
UCATV
UCATV
UFO
UFO
UGP
UGP
UGP
UGP
UGP
UGP
UGP
UGP
UGP
UGP
UGP
UGP
UGP
UGP
UCATV
UCATV
UCATV
UCATV
UCATV
UFO
UFO
UFO
UFO
UFO
EXISTING CREEKEXISTING CREEKGOLDSTAR DRIVE 15" RCP15" RCP
INV. = 381.4'
INV. = 381.4'
INV. = 381.4'
(3) 60" RCP
SANSANASPHALTS 76°
2
3
'
0
4
"

E

2
8
9
.
0
9
'
S 78°50'
5
4
"

E

6
9
4
.
1
4
'
S 82°03'46"

E

1
6
1
.
5
7
'ASPHALTEXISTING 70' PROGRESS
ENERGY TRANSMISSION
LINE EASEMENT
D.B. 12818, PG. 189
S 03°07'12" E
69.77' (TIE)
WOODS
INV. = 385.3'
INV. = 385.3'SANINV. = 385.3'S 06°39'34" E 425.85' (TOTAL)N 13°59'31" E 554.14'N 86°00'28" W 1279.26
'

(
T
O
T
A
L
)
35.90'
X
X
XXX
X
X
X
X
X
X
X
X
X
X
X
X
TBM-BENCHTIE IN 8" PINE
NAVD '88 ELEV. = 442.57'OHPOHPOHPOHPOHPOHPOHPOHP145.03' (TI
E
)
X
X
X
X
X
X
X
X
X
X
X
X
X
X
XXX N 54°31'43" W
57.83'
1221.43'288.01'137.84'C1
C2 XX
X XXGGGWWWWWWW
W
EXISTING 10' PSNC ENERGY
GAS LINE EASEMENT
D.B. 14410, PG. 1992
INV = 431.4'
INV = 428.5'
GATEASPHALTGRAVEL
ASPHALT
EXISTING F/O VAULT
18" RCP
EXISTING CATV VAULTP/LEXISTING 70' PROGRESS
ENERGY TRANSMISSION
LINE EASEMENT
D.B. 12818, PG. 18930' ZONE 1 RIPARIAN BUFFERN
6
0
°
2
3
'
4
2
"W

4
0
3
.
9
8
'
PRO
PO
S
ED

PRO
P
ER
T
Y

L
IN
E
BRUSH /
SPARSE WOODS
BRUSH / SPARSE
WOODS50' ZONE 2 RIPARIAN BUFFEREXISTING RIP RAP DITCH
EXISTING SEWER MANHOLE
RIM = 394.3'
INV IN (S) = 387.1'
INV OUT (N) = 385.3'
EXISTING SEWER MANHOLE
RIM = 397.1'
INV IN (S) = 389.8'
INV OUT (N) = 389.7'
WOODS
WOODS
WOODS
WOODS
WOODS
EXISTING WATER VAULT
EXISTING SEWER LINE IS
SUBJECT TO ANY PUBLIC
RECORDS FOR AN EASEMENT
CONVEYANCE THAT WAS NOT
FOUND BY SEARCHING THE WAKE
COUNTY REGISTER OF DEEDS.
EXISTING SEWER LINE RUNS
THROUGH BOX CULVERT
DISTRICT DRIVE - SR
1
7
7
4
(60' R/W)
WADE
A
V
E
N
U
E

E
X
T
E
N
S
I
O
N
(VARIA
B
L
E

W
I
D
T
H

R
/
W
)APPROXIMATE LOCATION OF R/W (NOT SURVEYED)(PLOTTED FROM NCDOTPROJECT NO. 9.9050653 - SHEET 4)WOODS
NCD
O
T

R
/
W
NCDOT R
/W
EXISTING DROP INLET
GRATE = 451.5'
INV IN (E) = 449.2'
INV IN (S) = 449.3'
INV OUT (W) = 443.6'
EXISTING DROP INLET
GRATE = 451.4'
INV OUT (W) = 447.6'
18" RC
P
INV.= 445.6'
15" RCP
INV.= 438.9'
EXISTING SEWER MANHOLE
RIM = 401.9'
INV IN (S) = 383.4'
INV OUT (N) = 383.4'
EXISTING CONC. HEADWALL
6' BOX CULVERT
TOP OF HEADWALL = 399.1'
INVERT OUT = 390.8'
EXISTING 6' BOX CULVERT
EXISTING CONC. HEADWALL
TOP OF HEADWALL = 392.1'
EXISTING CONC. HEADWALL
TBM-TOP OF BOLT
NAVD '88 ELEV. = 448.58'
TBM-BENCHTIE IN 18" POPLAR
NAVD '88 ELEV. = 393.34'
TBM-BENCHTIE IN 12" PINE
NAVD '88 ELEV. = 398.91'
EX
I
S
T
I
N
G

R
I
P

R
A
P

D
I
T
C
H
NCDOT R
/
W
TREE CLEARING IN
R/W ALLOWED BY
NCDOT
TREE CLEARING IN
R/W ALLOWED BY
NCDOT
A
-
A
-
A
-
B
-
B
-
B
-
C
-
C
-
C
-
SURPLUS R/W GRANTED
BY NCDOT IN STATE
PROJECT 8.2402801 R/W
FA PROJECT STP-3009(1)
DEMOLISH EXISTING FENCE
CONSTRU
C
T
I
O
N

L
I
M
I
T
SCONSTRUCTION LIMITSCONSTRUCTION LIMIT
S
CONSTRUCTION LIMITSTEMPORARY BENCH MARK
POWER POLE
SIGN EXISTING RIGHT-OF-WAY
PROPERTY LINE (NOT SURVEYED)CONTROL POINT (REBAR & CAP)
EXISTING IRON PIPE, STAKE, REBAR
SPOT ELEVATION
P/L
OVERHEAD ELECTRIC/POWER
UNDERGROUND TELEPHONE
OHP
T
X EXISTING FENCECOMPUTED POINT (NO POINT SET)
EXISTING NAIL NEAR FENCE CORNER
EXISTING SANITARY SEWER MANHOLE
EXISTING UNDERGROUND NATURAL GAS LINE
EXISTING UNDERGROUND ELECTRIC LINE
EXISTING UNDERGROUND CATV
EXISTING UNDERGROUND TV FIBER OPTIC LINE
EXISTING WOOD LINE
G
UGP
UCATV
UFO
SAN EXISTING UNDERGROUND SANITARY SEWER LINE
EXISTING CONCRETE RW MONUMENT
EXISTING TELEPHONE MANHOLE
EXISTING GUARD RAIL
EXISTING U/G VAULT
EXISTING CATV PEDESTAL
EXISTING U/G GAS VALVE
EXISTING WATER VALVE
EXISTING UNDERGROUND WATER LINEW
EXISTING BOLLARD
EXISTING CONDITIONS LEGEND KEY NOTES
1.ALL EXISTING STRUCTURES AND UTILITIES SHALL BE REMOVED AS NEEDED TO ALLOW NEW CONSTRUCTION. IN GENERAL, FEATURES INDICATED IN BOLD ON THIS PLAN
SHALL BE REMOVED. UNDERGROUND ELECTRICAL LINES MAY BE ABANDONED IN PLACE OUTSIDE OF NEW BUILDING LIMITS. COORDINATE PROPER ABANDONMENT WITH
UTILITY COMPANY.
2.ANY EXISTING PAVEMENT, ETC. THAT MUST BE REMOVED TO ALLOW NEW CONSTRUCTION SHALL BE REMOVED AND REPAIRED PER THE SPECIFICATIONS AND DETAILS OR
TO MATCH PRE-CONSTRUCTION CONDITIONS (WHETHER OR NOT SHOWN ON THE DRAWINGS TO BE REMOVED).
3.ALL UTILITIES OR STRUCTURES NOT INDICATED FOR REMOVAL OR MODIFICATION ARE TO REMAIN AND BE PROTECTED FROM DAMAGE.
4.ALL WASTE MATERIAL GENERATED FROM DEMOLITION ACTIVITIES SHALL BE DISPOSED OF OFF-SITE IN ACCORDANCE WITH ALL APPLICABLE RULES AND REGULATIONS AND
RECYCLED TO THE GREATEST EXTENT POSSIBLE.
5.THESE PLANS DO NOT ASSUME ANY LIABILITY FOR ANY EXISTING INFORMATION BOTH SHOWN AND NOT SHOWN ON THE SURVEY AND ANY CHANGES TO THE EXISTING
CONDITIONS THAT MAY HAVE OCCURRED AFTER THE SURVEY WAS ISSUED. CONTRACTOR SHALL VERIFY ALL EXISTING SITE CONDITIONS PRIOR TO CONSTRUCTION.
6.INSTALL SAFETY FENCE PRIOR TO BEGINNING OF CONSTRUCTION PER SPECIFICATIONS AND DRAWINGS. ALL CONTRACTORS SHALL VISIT THE SITE AND OBSERVE EXISTING
CONDITIONS PRIOR TO BIDDING.
7.PRIOR TO DEMOLISHING EXISTING STRUCTURES, MAKE AN INSPECTION FOR ANY HAZARDOUS MATERIALS. CONTACT ENGINEER IMMEDIATELY IF ANY HAZARDOUS
MATERIALS ARE DISCOVERED. ALL WORK TO BE PERFORMED IN ACCORDANCE WITH APPLICABLE FEDERAL, STATE AND LOCAL REGULATIONS.
8.VERIFY ALL ILLUSTRATED KNOWN UNDERGROUND ELEMENTS. EXERCISE REASONABLE EFFORTS TO PROTECT ANY UNKNOWN UNDERGROUND ELEMENTS. NOTIFY THE
ENGINEER IMMEDIATELY IF UNKNOWN ELEMENTS ARE DISCOVERED THAT WOULD NECESSITATE MODIFICATION TO THE PROPOSED DESIGN.
9.PROTECT ALL ADJACENT PROPERTIES, THE GENERAL PUBLIC AND ALL OF THE OWNER'S FACILITIES. SHOULD DAMAGES OCCUR, REPAIR IMMEDIATELY AS DIRECTED BY THE
ENGINEER.
10.ALL WORK SHALL BE PERFORMED IN ACCORDANCE WITH APPLICABLE LOCAL, STATE AND OSHA REGULATIONS.
11.ALL EXISTING VAULTS, MANHOLES, STORM DRAIN STRUCTURES, CLEANOUTS, ETC. SHALL BE ADJUSTED AS NEEDED TO MATCH FINISH GRADE.
12.ALL CONSTRUCTION SHALL BE IN STRICT ACCORDANCE WITH NC STATE CONSTRUCTION STANDARDS, SPECIFICATIONS, AND DETAILS.
13.DEMOLITION AND PATCHING OF PAVEMENT AND OTHER EXISTING PAVED SURFACES IN ADDITION TO THAT INDICATED ON THIS PLAN SHALL BE PERFORMED AS REQUIRED TO
CONSTRUCT AND INSTALL NEW UTILITIES. ALL SUCH DEMOLITION AND PATCHING SHALL BE INCLUDED IN THE BASE BID SCOPE OF WORK.
DEMOLITION NOTES
REMOVE EXISTING TREES
BRUSH/SPARSE TREE CLEARING
REMOVE R/W FENCE
A
-
B
-
C
-
JOB NO.
SHEET NO.
SCALE
DESIGNED BY
CHECKED BYDATEDRAWN BY
DATEREVISION DESCRIPTIONYOUR VISION ACHIEVED THROUGH OURS.5410 Trinity Road, Suite 102 | Raleigh, NC 27607TEL [phone] FAX [phone] www.timmons.comTHIS DRAWING PREPARED AT THERALEIGH OFFICEN O R T H C A R O L I N
AP R O F E S S I O N
A
LE N G I N E E R
0 3 3 6 1 2N O R T H C A R O L I N
AP R O F E S S I O N
A
LE N G I N E E RN O R T H C A R O L I N
AP R O F E S S I O N
A
LE N G I N E E RN O R T H C A R O L I N
AP R O F E S S I O N
A
LE N G I N E E R
S E A LN O R T H C A R O L I N
AP R O F E S S I O N
A
LE N G I N E E RN O R T H C A R O L I N
AP R O F E S S I O N
A
LE N G I N E E RN O R T H C A R O L I N
AP R O F E S S I O N
A
LE N G I N E E RF R
A N C I S S L I N S K Y, I I I24 JULY 2020
NORTH CAROLINA NATIONAL GUARD JFHQ RALEIGH HELIPAD1636 GOLD STAR DRIVE, SUITE 2600, RALEIGH, NORTH CAROLINA 27607 | NCSCO CASE #: 17-16713-01A42866
WA
FS
FS
NTS
NORTH CAROLINA LICENSE NO. C-16526/24/20
STORMWATER FAST TRACK ATC SUBMITTAL06/24/2020C1.0 EXISTING CONDITIONS & DEMOLITION PLANNAD 83SCALE 1"=50'
100'50'0
XXXXXOHP
LOCALIZATION POINT
NC GRID (NAD 83/NSRS2007)
N=748569.73'
E=2085686.64'
NAVD '88 ELEV. = 448.83'
COMBINED FACTOR = 0.999902990
(SEE NOTE NO. 6)
CONTROL POINT (REBAR & CAP)
G
G
G
G
G
G
G
G
G
G
G
G
G
G G
G
UGT
UCATV
UCATV
UCATV
UCATV
UCATV
UFO
UFO
UFO
UFO
UFO
UCATV
UCATV
UFO
UFO
UGP
UGP
UGP
UGP
UGP
UGP
UGP
UGP
UGP
UGP
UGP
UGP
UGP
UGP
UCATV
UCATV
UCATV
UCATV
UCATV
UFO
UFO
UFO
UFO
UFOGOLDSTAR DRIVE SANSANS 76°
2
3
'
0
4
"

E

2
8
9
.
0
9
'
S 78°50'
5
4
"

E

6
9
4
.
1
4
'
S 82°03'46"

E

1
6
1
.
5
7
'
S 03°07'12" E
69.77' (TIE)SANS 06°39'34" E 425.85' (TOTAL)N 13°59'31" E 554.14'N 86°00'28" W 1279.26
'

(
T
O
T
A
L
)
35.90'
OWNER INFORMATION
PIN NO. 0785316741
STATE OF NORTH CAROLINA
B.M. 1985, PG. 1399
B.M. 1988, PG. 1339
B.M. 2011, PG. 451
X
X
XXX
X
X
X
X
X
X
X
X
X
TBM-BENCHTIE IN 8" PINE
NAVD '88 ELEV. = 442.57'OHPOHPOHPOHPOHPOHPOHPOHP145.03' (TI
E
)XXN 54°31'43" W
57.83'
1221.43'288.01'137.84'C1
C2 XX
X XXGGGWWWWWWW
W
OWNER INFORMATION
PIN NO. 0785316741
STATE OF NORTH CAROLINA
B.M. 1985, PG. 1399
B.M. 1988, PG. 1339
B.M. 2011, PG. 451
OWNER INFORMATION
PIN NO. 0785316741
STATE OF NORTH CAROLINA
B.M. 1985, PG. 1399
B.M. 1988, PG. 1339
B.M. 2011, PG. 451
P/L30' ZONE 1 RIPARIAN BUFFERN
6
0
°
2
3
'
4
2
"W

4
0
3
.
9
8
'
PRO
PO
S
ED

PRO
P
ER
T
Y

L
IN
E50' ZONE 2 RIPARIAN BUFFERDISTRICT DRIVE - SR
1
7
7
4
(60' R/W)
WADE
A
V
E
N
U
E

E
X
T
E
N
S
I
O
N
(VARIA
B
L
E

W
I
D
T
H

R
/
W
)APPROXIMATE LOCATION OF R/W (NOT SURVEYED)(PLOTTED FROM NCDOTPROJECT NO. 9.9050653 - SHEET 4)NCD
O
T

R
/
W
NCDOT R
/W
TBM-TOP OF BOLT
NAVD '88 ELEV. = 448.58'
TBM-BENCHTIE IN 18" POPLAR
NAVD '88 ELEV. = 393.34'
TBM-BENCHTIE IN 12" PINE
NAVD '88 ELEV. = 398.91'
NCDOT R
/
W
2
C5.5
50'100'
42.5'
127.5'
42.5'35'
100'
283'
25'
233'
25'
212.5'
R35'
150'
25'
25'
25'
50'
X
X
X
X
X
X
X
X
X
XXXX
X
X
X
X
X
X
X
X
X
X XXXXXXX
R35'
50'
50'
50'
50'
50'
50'
10'
10'
EDGE OF GRASS SHOU
L
D
E
R EDGE OF GRASS SHOULDEREDGE OF GRASS SHOU
L
D
E
R
50'
10'
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
NCDOT R/W FENCING TO
MATCH EXISTING
2
C5.5XXX
X
X
X
5
C5.6
R35'EDGE OF GRASS SHOULDEREDGE OF GRASS SHOULDERREFER TO SHEETS C3.1 &
C3.2 FOR GEOMETRIC
LAYOUT OF HELIPAD AND
SHEET C6.0 FOR PAVEMENT
SECTIONS
5
C5.6
1
C5.4
1
C5.8
2
C5.5
2
C5.5
N: 748446.26
E: 2085367.30 N: 748442.14
E: 2085426.52
N: 748556.59
E: 2085374.48 N: 748550.30
E: 2085468.37
24'
1
C5.4
1
C5.4
1
C5.5
1
C5.4
1
C5.4
1
C5.4
1
C5.4
1
C5.4
1
C5.5
1
C5.4
1
C5.8
1
C5.4
N: 748517.33
E: 2085431.00
N: 748519.53
E: 2085407.09
N: 748479.09
E: 2085404.68
50'
39'
37.5'
52'
37.5'
52'
50'
39'
GENERAL NOTES:
1.COMPLY WITH ALL APPLICABLE NCSCO AND OSHA STANDARDS.
3.RECYCLE ALL PAVING MATERIALS REMOVED FROM THE SITE AND SHALL
PROVIDE DOCUMENTATION (SWARWEB) THAT THE MATERIALS HAVE
BEEN RECYCLED.
4.DISPOSE OF OFF-SITE WASTE MATERIALS GENERATED DURING
CONSTRUCTION. OBTAIN ALL APPLICABLE PERMITS FOR OFF-SITE
STOCKPILES AND/OR WASTE AREAS.
5.CONTRACTOR IS RESPONSIBLE FOR ANY DAMAGES DURING
CONSTRUCTION AND SHALL MAKE REPAIRS AT NO EXPENSE TO THE
OWNER.
GENERAL PAVING NOTES:
1.RAISE ALL STRUCTURES WITHIN THE AREAS TO BE OVERLAID SUCH
THAT THE TOP OF THE STRUCTURE EQUALS THE FINISH GRADE OF THE
NEW ASPHALT.
2.COORDINATE THE PROJECT SCHEDULE WITH THE CIVIL ENGINEER AND
THE OWNER.
KEY NOTES
ASPHALT PAVEMENT (REFER TO SHEET C6.0)
BLACK VINYL CHAINLINK FENCE WITH ALL BLACK
MATERIALS AND CONCRETE MOW STRIP (8' TOTAL HEIGHT)
MODULAR BLOCK RETAINING WALL
1
C5.4
5
C5.6
PVC COATED CHAINLINK GATES WITH BARBED WIRE
(8' HEIGHT)
1
C5.5
NOTES
WOVEN WIRED FENCE
2
C5.5
CABLE BARRIER1
C5.8
PORTLAND CEMENT CONCRETE (PCC) PAVEMENT
(REFER TO SHEETS C3.1, C3.2, AND C6.0 - C6.4)
BASE BID: ASPHALT PAVEMENT
ALTERNATE 5: PORTLAND CONCRETE CEMENT (PCC)
PAVEMENT IN LIEU OF ASPHALT PAVEMENT
JOB NO.
SHEET NO.
SCALE
DESIGNED BY
CHECKED BYDATEDRAWN BY
DATEREVISION DESCRIPTIONYOUR VISION ACHIEVED THROUGH OURS.5410 Trinity Road, Suite 102 | Raleigh, NC 27607TEL [phone] FAX [phone] www.timmons.comTHIS DRAWING PREPARED AT THERALEIGH OFFICEN O R T H C A R O L I N
AP R O F E S S I O N
A
LE N G I N E E R
0 3 3 6 1 2N O R T H C A R O L I N
AP R O F E S S I O N
A
LE N G I N E E RN O R T H C A R O L I N
AP R O F E S S I O N
A
LE N G I N E E RN O R T H C A R O L I N
AP R O F E S S I O N
A
LE N G I N E E R
S E A LN O R T H C A R O L I N
AP R O F E S S I O N
A
LE N G I N E E RN O R T H C A R O L I N
AP R O F E S S I O N
A
LE N G I N E E RN O R T H C A R O L I N
AP R O F E S S I O N
A
LE N G I N E E RF R
A N C I S S L I N S K Y, I I I24 JULY 2020
NORTH CAROLINA NATIONAL GUARD JFHQ RALEIGH HELIPAD1636 GOLD STAR DRIVE, SUITE 2600, RALEIGH, NORTH CAROLINA 27607 | NCSCO CASE #: 17-16713-01A42866
WA
FS
FS
NTS
NORTH CAROLINA LICENSE NO. C-16526/24/20
STORMWATER FAST TRACK ATC SUBMITTAL06/24/2020STAKING PLANNAD 83SCALE 1"=50'
100'50'0
C3.0
KEY NOTES
BIORETENTION STORMWATER CONTROL MEASURE
FLARED END SECTION
DRAINAGE MANHOLE
STANDARD CONCRETE DROP INLET
NOTES
1.ALL CONSTRUCTION SHALL COMPLY WITH ALL APPLICABLE
NCSCO AND OSHA STANDARDS.
2.THE CONTRACTOR SHALL RECYCLE MATERIALS REMOVED
FROM THE SITE AND SHALL PROVIDE DOCUMENTATION
(SWAR) THAT THE MATERIALS HAVE BEEN RECYCLED.
3.DISPOSE OFF-SITE WASTE MATERIALS GENERATED DURING
CONSTRUCTION AND FOR OBTAINING ALL APPLICABLE
PERMITS FOR OFF-SITE STOCKPILES AND/OR WASTE AREAS.
IF THE SAME PERSON CONDUCTS THE LAND-DISTURBING
ACTIVITY AND ANY RELATED BORROW OR WASTE ACTIVITY,
THE RELATED BORROW OR WASTE ACTIVITY IS PART OF THE
LAND DISTURBING ACTIVITY. IF THE BORROW OR WASTE
ACTIVITY ARE NOT CONDUCTED BY THE SAME PERSON, THEY
SHALL BE CONSIDERED SEPARATE LAND DISTURBING
ACTIVITY AND MUST BE PERMITTED THROUGH THE SEDIMENT
POLLUTION CONTROL ACT.
4.REPAIR OR REPLACE ANY ITEMS DAMAGED DUE TO
CONSTRUCTION (ONSITE AND/OR OFFSITE) AT NO EXPENSE
TO THE OWNER.
5.COORDINATE THE PROJECT SCHEDULE WITH THE OWNER,
OWNER'S CIVIL ENGINEER, AND OWNER'S MATERIAL TESTING
AGENT. COORDINATE THE PROJECT SCHEDULE WITH ALL
PARTIES IN ACCORDANCE WITH THE OWNER'S ONGOING
ONSITE OPERATIONS.
6.ALL STORM DRAINAGE PIPES AND STRUCTURES SHALL BE
THOROUGHLY FLUSHED OF ALL SEDIMENT FOLLOWING SITE
STABILIZATION. INTERIOR FLUSHING OF SYSTEM SHALL BE
PERFORMED AS NEEDED TO MAINTAIN PROPER FUNCTIONING
OF THE DRAINAGE SYSTEM.
7.MAINTAIN ALL EROSION CONTROL DEVICES AFTER EACH
RAINFALL EVENT IN ACCORDANCE WITH NCDEQ LAND
QUALITY REQUIREMENTS AND AS DIRECTED BY THE CIVIL
ENGINEER.
8.IN DISTURBED AREAS, AMEND THE TOP 6 INCHES OF LAWN
AREAS WITH 3 INCHES OF IMPORTED AND TESTED TOPSOIL
THAT MEET THE SPECIFICATIONS.
9.ALL SIDEWALKS SHALL HAVE MAX CROSS SLOPE OF 2%.
10.ALL ADA PARKING SPACES SHALL NOT EXCEED 2% SLOPE IN
ANY DIRECTION.
11.INSTALL ALL STORM SEWERS TO PROVIDE REQUIRED
CLEARANCES TO CROSSING UTILITIES AS INDICATED IN THE
DRAWINGS AND SPECIFICATIONS.
12.PROVIDE AN AS-BUILT SURVEY OF ALL UTILITY AND STORM
13.PHASE DEMOLITION AND NEW CONSTRUCTION TO ENSURE
UNINTERRUPTED ACCESS AND TO ADJACENT FACILITIES.
COORDINATE SHORT-TERM, OFF-HOUR, TEMPORARY SHUT-
DOWNS WITH THE OWNER.
14.SEE GENERAL NOTES ON EXISTING CONDITIONS AND
DEMOLITION PLAN FOR REQUIREMENTS FOR REMOVAL AND
PATCHING OF PAVEMENT FOR UTILITY INSTALLATION.
15.REFER TO PROJECT SPECIFICATIONS FOR ADDITIONAL
INFORMATION.
T-1: 9 FEET OF UNSTRUCTURED FILL
T-2: 8.5 FEET OF UNSTRUCTURED FILL
T-3: 6 FEET OF UNSTRUCTURED FILL
T-4: 6 FEET OF UNSTRUCTURED FILL
T-5: 6.5 FEET OF UNSTRUCTURED FILL
T-6: 9 FEET OF UNSTRUCTURED FILL
T-7: 8 FEET OF UNSTRUCTURED FILL
T-8: NO FILL (NATIVE SOILS)
T-9: NO FILL (NATIVE SOILS)
TEST PIT BORING DATA RIP RAP OUTLET PROTECTION
MODULAR BLOCK RETAINING WALL
AREA OF UNSUITABLE (FILL) MATERIAL
(PLACE IN GRASS AREAS)
CONCRETE UTILITY CRADLE
TRENCH DRAIN
YARD DRAIN
REINFORCED CONCRETE STORM PIPE
HDPE STORM PIPE
D
STANDARD STORM SEWER CLEANOUT
1
C5.6
2
C5.6
4
C5.6
1
C5.7
3
C5.1
2
C5.5
3
C5.9
2
C5.9
1
C5.9
4
C5.9
SOD BIORETENTION CELL WITH
CELEBRATION BERMUDA
425
430
435
440
445
445421422
423
424
426
427
428
429
431
432
433
434
436
437
438
439
441
442
443
4444204254304354174184194214224
2
3
424426427428429431432433434436
437
438
400
405
410
415
420
396
397398399
401
402
403
404
406
407408
409
411412413414
416
417
418
419
421
410
415
420
425
406407408409 411 412 413 414 416417418419
421 422 423 424 426 427 428 429
4
3
0
4
3
5 440 4454274284
2
9
4
3
1
4
3
2
4
3
3
4
3
4
4
3
6
4
3
7
4
3
8
4
3
9
4
4
1
4
4
2443 4444464474484404454504414424434444464474484494514254304354404264274
2
8
429431432433434436437438439441442443444
4
0
0
40541
039739
8
3
9
9
4
0
1
4
0
2
4
0
3 40440640
7
40
8
40
9
41
1
4
0
0 4054104154204254304354404454504
0
1
4
0
2 4034044
0
6
4
0
7
4
0
8
4
0
9 411412413414416417418419421422423424426427428429431432433434436437438439441442443444446447448449451390
395
400
390390390395393392391390389388393395397396395396398397399
395395396 398
39839639539439
1
3
9
1
3
9
3
392391392390
392400
405
410
394
390
389
387
386387390398396394
400
396403410415395400405
400
425
427
4324
3
0
42242
0
41
7
41
0
43
4391392 X
X
X
X
X
X
X
X
X
XXXX
X
X
X
X
X
X
X
X
X
X XXXXXXX
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
XXX
X
X
XXXXXX OHP
LOCALIZATION POINT
NC GRID (NAD 83/NSRS2007)
N=748569.73'
E=2085686.64'
NAVD '88 ELEV. = 448.83'
COMBINED FACTOR = 0.999902990
(SEE NOTE NO. 6)
CONTROL POINT (REBAR & CAP)
G
G
G
G
G
G
G
G
G
G
G
G
G
G G
G
UGT
UCATV
UCATV
UCATV
UCATV
UCATV
UFO
UFO
UFO
UFO
UFO
UCATV
UCATV
UFO
UFO
UGP
UGP
UGP
UGP
UGP
UGP
UGP
UGP
UGP
UGP
UGP
UGP
UGP
UGP
UCATV
UCATV
UCATV
UCATV
UCATV
UFO
UFO
UFO
UFO
UFOGOLDSTAR DRIVE SANSANS 76°
2
3
'
0
4
"

E

2
8
9
.
0
9
'
S 78°50'
5
4
"

E

6
9
4
.
1
4
'
S 82°03'46"

E

1
6
1
.
5
7
'
S 03°07'12" E
69.77' (TIE)SANS 06°39'34" E 425.85' (TOTAL)N 13°59'31" E 554.14'N 86°00'28" W 1279.2
6
'

(
T
O
T
A
L
)
35.90'
X
X
XXX
X
X
X
X
X
X
X
X
X
TBM-BENCHTIE IN 8" PINE
NAVD '88 ELEV. = 442.57'OHPOHPOHPOHPOHPOHPOHPOHP145.03' (TI
E
)XXN 54°31'43" W
57.83'
1221.43'288.01'137.84'C1
C2 XX
X XXGGGWWWWWWW
W P/L30' ZONE 1 RIPARIAN BUFFERN
6
0
°
2
3
'
4
2
"W

4
0
3
.
9
8
'
PRO
PO
S
ED

PRO
P
ER
T
Y

L
IN
E50' ZONE 2 RIPARIAN BUFFERDISTRICT DRIVE - SR

1
7
7
4
(60' R/W)
WADE
A
V
E
N
U
E

E
X
T
E
N
S
I
O
N
(VARIA
B
L
E

W
I
D
T
H

R
/
W
)APPROXIMATE LOCATION OF R/W (NOT SURVEYED)(PLOTTED FROM NCDOTPROJECT NO. 9.9050653 - SHEET 4)NCD
O
T

R
/
W
NCDOT R
/W
TBM-TOP OF BOLT
NAVD '88 ELEV. = 448.58'
TBM-BENCHTIE IN 18" POPLAR
NAVD '88 ELEV. = 393.34'
TBM-BENCHTIE IN 12" PINE
NAVD '88 ELEV. = 398.91'
NCDOT R
/
W
-2.25%-3.07%-2.03%-3.20%
-1.00%-2.88%-1.58%-1.93
%
-2.83%
-1.42
%-1.41%-
2
.
9
2%418427
42
0
42
3
441 438424424
433
435
423 425 425
428 430
434
4384
2
9
4
3
1
41
942042
4
4
1
1
436
443
442
4
3
4 437435434
418
414
409
406
421
416
410
430
418
414 417
42
5
441420
-1.43
%
424
420422
41
7
50'
50'
50'
50'
50'
50'
50'
T-5
T-6
T-4
T-3
T-2
T-8
T-7
T-1
T-9
436435433431435437B-3
B-5
B-4
B-1
B-6
B-2
AREA OF UNSUITABLE
FILL MATERIAL
BURY IN GRASS AREA AS
PART OF BASE BID. NO
UNSUITABLE MATERIAL
SHALL REMAIN UNDER
PAVED SURFACES.
D
DD
4
3
0
4
3
1
42
7
42
8
42
9
42
6
42
7
42
8
42
9
42
6
42
7
42
8
42
9
4
3
0429425430426427428429431432 433BIORETENTION
STORMWATER
CONTROL MEASURE
42
9
.
2
429.2
4
C5.6
1
C5.6
4
C5.6
4
C5.6
2
C5.6
4
C5.6
1
C5.6
4
C5.6
2
C5.5
2
C5.6
1
C5.6
2
C5.5
3
C5.1
3
C5.1
3
C5.1
C1
C2C3
A5
A4
A2
4
C5.6 A3
1
C5.6 A1
B1
B2
B3
B5
4
C5.6B7
1
C5.6 B8
7
C5.6
TD-7
5
C5.6 Y1
6
C5.6
TD-7 6
C5.6
8" SOLID SMOOTH
WALL HDPE
INV IN: 426.69'
HIGH-POINT
430.80'
3
C5.1
1
C5.7
5
C5.6 Y2
5
C5.6 Y3
E
HIGH-POINT
435.25'
4
C5.9
4
C5.9
4
C5.9
A
C
B
425
427
430
422
X X X X X X X
NCDOT R/W-3.07%429
431
T-3
D
430
431
427 428 429
426 427 428 429
426427428429
430
429428429BIORETENTION
STORMWATER
CONTROL MEASURE
9.6'
9.6'
9.6'
9.6'
9.6'
10' TOP OF BERM429.2
429.
2
TYP. OF 12 IN
BIORETENTION
1
C5.7
3:1 SIDE SLOPES
OUTLET STRUCTURE
(C4) REFER TO DETAIL
3
C5.1E 1
C5.6 B8
6" PERFORATED
UNDERDRAIN (TYP.)
8' RIPRAP LINED
EMERGENCY
SPILLWAY
3
C5.1 B
1
C5.6 B3
4
C5.9
SOD WITH CELEBRATION BERMUDA
JOB NO.
SHEET NO.
SCALE
DESIGNED BY
CHECKED BYDATEDRAWN BY
DATEREVISION DESCRIPTIONYOUR VISION ACHIEVED THROUGH OURS.5410 Trinity Road, Suite 102 | Raleigh, NC 27607TEL [phone] FAX [phone] www.timmons.comTHIS DRAWING PREPARED AT THERALEIGH OFFICEN O R T H C A R O L I N
AP R O F E S S I O N A
LE N G I N E E R
0 3 3 6 1 2N O R T H C A R O L I N
AP R O F E S S I O N A
LE N G I N E E RN O R T H C A R O L I N
AP R O F E S S I O N A
LE N G I N E E RN O R T H C A R O L I N
AP R O F E S S I O N A
LE N G I N E E R
S E A LN O R T H C A R O L I N
AP R O F E S S I O N A
LE N G I N E E RN O R T H C A R O L I N
AP R O F E S S I O N A
LE N G I N E E RN O R T H C A R O L I N
AP R O F E S S I O N A
LE N G I N E E RF R A N C I S S L I N S K Y, I I I24 JULY 2020
NORTH CAROLINA NATIONAL GUARD JFHQ RALEIGH HELIPAD1636 GOLD STAR DRIVE, SUITE 2600, RALEIGH, NORTH CAROLINA 27607 | NCSCO CASE #: 17-16713-01A42866
WA
FS
FS
NTS
NORTH CAROLINA LICENSE NO. C-16526/24/20
STORMWATER FAST TRACK ATC SUBMITTAL06/24/2020C4.0 GRADING & DRAINAGE PLANNAD 83SCALE 1"=50'
100'50'0
ABBREVIATIONS:
DI - DROP INLET
FES - FLARED END SECTION
MH - MANHOLE
YD - YARD DRAIN
RCP - REINFORCED CONCRETE PIPE
HDPE - HIGH DENSITY POLYETHYLENE
(SMOOTH LINED) PIPENAD 830
SCALE 1"=30'
60'30'INSET A: BIORETENTION DETAIL
IN
S
E
T

A
:

B
I
O
R
E
T
E
N
T
I
O
N

D
E
T
A
I
L
4254304354404
4
5 445420
425
430
435400405410415420 41041542042543043544044544
0
445
450425430
435
4
4
0 400405410400405410415420
425
430
435
440
445
450 390395400390
390
390395 390395395
395395395390400405410390 390
4
0
0
410
415
395
400
4
0
5 400425430420410XXGGGGGGGGUCATVUCATVUFOUFOUCATVUFOUGPUGPUGPUGPUGPUGPUGPUCATVUCATVUFOUFOEXISTING CREEKEXISTING CREEKGOLDSTAR DRIVE SANS 76°23'04" E 289.09'S 78°50'54" E 694.14'S 82°03'46" E 161.57'S 03°07'12" E69.77' (TIE)WOODSS 06°39'34" E 425.85' (TOTAL)N 13°
5
9
'
3
1
"

E

5
5
4
.
1
4
'N 86°00'28" W 1279.26' (TOTAL)35.90'OWNER INFORMATIONPIN NO. 0785316741STATE OF NORTH CAROLINAB.M. 1985, PG. 1399B.M. 1988, PG. 1339B.M. 2011, PG. 451XXXXXXXXOHP
OHP
OHPOHP
145.03' (TIE)XXXXXXXN 40°24'42" W 1605.78' (GRID)XN 54°31'43" W57.83'1221.43'288.01'137.84'C1C2XX
G
W
W
WOWNER INFORMATIONPIN NO. 0785316741STATE OF NORTH CAROLINAB.M. 1985, PG. 1399B.M. 1988, PG. 1339B.M. 2011, PG. 451OWNER INFORMATIONPIN NO. 0785316741STATE OF NORTH CAROLINAB.M. 1985, PG. 1399B.M. 1988, PG. 1339B.M. 2011, PG. 45130' ZONE 1 RIPARIAN BUFFERN60°23'42"W 403.98'PROPOSED PROPERTY LINEBRUSH /SPARSE WOODSBRUSH / SPARSEWOODS50' ZONE 2 RIPARIAN BUFFERWOODSWOODSWOODSWOODSWOODSDISTRICT DRIVE - SR 1774(60' R/W)WADE AVENUE EXTENSION(VARIABLE WIDTH R/W)APPR
O
X
I
M
A
T
E

L
O
C
A
T
I
O
N

O
F

R
/
W
(NOT
S
U
R
V
E
Y
E
D
)
(PLOT
T
E
D

F
R
O
M

N
C
D
O
T
PROJ
E
C
T

N
O
.

9
.
9
0
5
0
6
5
3

-

S
H
E
E
T

4
)WOODSEX. DRAINAGE CHANNELEX. DRAINAGE CHANNELDRAINAGE AREA OF CONCERN UP TO EXISTINGCHANNEL (NO DRAINAGE CHANGES OUTSIDE THISAREA)CONSTRUCTION LIMITSCONSTRUCTION LIMITSCONSTRUCTION LIMITSCONSTRUCTION LIMITS EXISTING CREEKOFFSITE DRAINAGE AREA RE-ROUTEDTHROUGH SITE (THIS AREA IS THE ONLYOFFSITE DRAINAGE AREA THAT IS BEINGCHANGED OR RE-ROUTED).ANALYSIS POINTPRE-DEVELOPMENT DRAINAGEAREA: 17.58 AC.COMPOSITE C: .35TIME OFCONCENTRATION LINEOFFSITE IMPERVIOUS DIGITIZEDFROM AERIAL PHOTOGRAPHYAND DIMENSIONED FROM FIELDVISIT BY ENGINEER.4254304354404
4
5 445420
425
430
435400405410415420 41041542042543043544044544
0
445
450425430
435
4
4
0 400405410400405410415420
425
430
435
440
445
450 390395400390
390
390395
39
0
395395
395395395390400405410390 390
4
0
0
410
415
395
400
4
0
5 400425430420410XXGGGGGGGGUCATVUCATVUFOUFOUCATVUFOUGPUGPUGPUGPUGPUGPUGPUCATVUCATVUFOUFOEXISTING CREEKEXISTING CREEKGOLDSTAR DRIVE SANS 76°23'04" E 289.09'S 78°50'54" E 694.14'S 82°03'46" E 161.57'S 03°07'12" E69.77' (TIE)WOODSS 06°39'34" E 425.85' (TOTAL)N 13°
5
9
'
3
1
"

E

5
5
4
.
1
4
'N 86°00'28" W 1279.26' (TOTAL)35.90'OWNER INFORMATIONPIN NO. 0785316741STATE OF NORTH CAROLINAB.M. 1985, PG. 1399B.M. 1988, PG. 1339B.M. 2011, PG. 451XXXXXXXXOHP
OHP
OHPOHP
145.03' (TIE)XXXXXXXN 40°24'42" W 1605.78' (GRID)XN 54°31'43" W57.83'1221.43'288.01'137.84'C1C2XX
G
W
W
WOWNER INFORMATIONPIN NO. 0785316741STATE OF NORTH CAROLINAB.M. 1985, PG. 1399B.M. 1988, PG. 1339B.M. 2011, PG. 451OWNER INFORMATIONPIN NO. 0785316741STATE OF NORTH CAROLINAB.M. 1985, PG. 1399B.M. 1988, PG. 1339B.M. 2011, PG. 45130' ZONE 1 RIPARIAN BUFFERN60°23'42"W 403.98'PROPOSED PROPERTY LINE50' ZONE 2 RIPARIAN BUFFERDISTRICT DRIVE - SR 1774(60' R/W)WADE AVENUE EXTENSION(VARIABLE WIDTH R/W)APPR
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435435
DDD430430425
430TYP. OF 12 INBIORETENTIONSOD WITH CELEBRATION BERMUDA333'272.11'150'150'BIORETENTION SCMEX. DRAINAGE CHANNELEX. DRAINAGE CHANNELDRAINAGE AREA OF CONCERN UP TO EXISTINGCHANNEL (NO DRAINAGE CHANGES OUTSIDE THISAREA)BACONSTRUCTION LIMITSCONSTRUCTION LIMITSCONSTRUCTION LIMITSCONSTRUCTION LIMITS EXISTING CREEKOFFSITE DRAINAGE AREA RE-ROUTEDTHROUGH SITE (THIS AREA IS THE ONLYOFFSITE DRAINAGE AREA THAT IS BEINGCHANGED OR RE-ROUTED).POST-DEVELOPMENT DRAINAGEAREA TO SCM: 6.11 AC.COMPOSITE C: .62POST-DEVELOPMENT BYPASSDRAINAGE AREA: 12.65 AC.COMPOSITE C: .39ANALYSIS POINTTIME OFCONCENTRATION LINEOFFSITE IMPERVIOUS DIGITIZEDFROM AERIAL PHOTOGRAPHYAND DIMENSIONED FROM FIELDVISIT BY ENGINEER.JOB NO.SHEET NO.SCALEDESIGNED BYCHECKED BYDATE
DRAWN BYDATEREVISION DESCRIPTION
YOUR VISION ACHIEVED THROUGH OURS.5410 Trinity Road, Suite 102 | Raleigh, NC 27607
TEL [phone] FAX [phone] www.timmons.com
THIS DRAWING PREPARED AT THE
RALEIGH OFFICE
N O
R T H C A R O L I N AP R
O F E S S I O N A LE N G I N E E R0 3 3 6 1 2N O
R T H C A R O L I N AP R
O F E S S I O N A LE N G I N E E RN O
R T H C A R O L I N AP R
O F E S S I O N A LE N G I N E E RN O
R T H C A R O L I N AP R
O F E S S I O N A LE N G I N E E RS E A LN O
R T H C A R O L I N AP R
O F E S S I O N A LE N G I N E E RN O
R T H C A R O L I N AP R
O F E S S I O N A LE N G I N E E RN O
R T H C A R O L I N AP R
O F E S S I O N A LE N G I N E E RF R A N C I S S L I N S K Y
, I I I24 JULY 2020NORTH CAROLINA NATIONAL GUARD JFHQ RALEIGH HELIPAD
1636 GOLD STAR DRIVE, SUITE 2600, RALEIGH, NORTH CAROLINA 27607 | NCSCO CASE #: 17-16713-01A42866 WAFSFSNTSNORTH CAROLINA LICENSE NO. C-1652 6/24/20STORMWATER FAST TRACK ATC SUBMITTAL06/24/2020LEGENDEXISTING OFFSITE IMPERVIOUS (BYPASS)(1.94 ± ACRES)ANALYSIS POINTDRAINAGEAREA(Acres)COMPOSITE CQ1Q10POST-DEVELOPMENTB12.65.396.6011.11POST-DEVELOPMENTAPOST-DEVELOPMENTTOTAL = A + B4.93.625.376.2217.587.1816.77POST-DEVELOPMENT WATER QUANTITY SUMMARYNOTE: POST-DEVELOPMENT FLOW IS LESS THAN PRE-DEVELOPMENT FLOW FOR THE 1-YEAR, 24-HOUR STORM ATANALYSIS POINT. REFER TO CALCULATION BOOKLET FOR ADDITIONAL INFORMATION.Q10015.477.9623.39DRAINAGE AREAANALYSIS POINTDRAINAGEAREA(Acres)COMPOSITE CPRE-DEVELOPMENT17.58Q1Q10.359.4315.87NOTE: POST-DEVELOPMENT FLOW IS LESS THAN PRE-DEVELOPMENT FLOW AT ANALYSIS POINT.REFER TO CALCULATION BOOKLET FOR ADDITIONAL INFORMATION.Q10022.09PRE-DEVELOPMENT WATER QUANTITY SUMMARYC4.1STORMWATER MANAGEMENT PLAN
NAD 830SCALE 1"=100'200'100'1" = 100'ON-SITE BUILDINGSDRAINAGE BASIN BUILT UPON AREAON-SITE STREETSON-SITE PARKINGON-SITE SIDEWALKSFUTURETOTAL IMPERVIOUSTOTAL DRAINAGE AREA00118,27500119,081266,245DRAINAGE AREA ABUA TYPE(SF)(SF)(SF)(SF)(SF)(SF)(SF)00118,27500119,081550,548PROJECT AREA1.ALL PROPOSED IMPERVIOUS AREA IS CAPTURED IN THE BIORETENTION CELL.2.A BIORETENTION CELL IS BEING PROVIDED TO CONTROL AND TREAT RUNOFF FROM THE DEVELOPMENT AREA INDRAINAGE AREA A.3.FOR STORMWATER MANAGEMENT, THERE IS ONE ANALYSIS POINT IN AN EXISTING CREEK TO THE NORTHWEST OFTHE SITE. DRAINAGE AREA 'A' IS THE AREA WITHIN THE DISTURBED AREA THAT DRAINS TO THE BIORETENTION CELL. DRAINAGE AREA 'B' IS THE AREA WITHIN THE DISTURBED AREA THAT DRAINS TO THE ANALYSIS POINT BUT BYPASSESTHE BIORETENTION. POST DEVELOPMENT RUNOFF HAS BEEN DESIGNED TO BE LESS THAN PRE DEVELOPMENTRUNOFF FOR THE 1 YEAR, 24 HOUR STORM AT THE ANALYSIS POINT.4.THIS DRAWING IS FOR AGENCY REVIEW ONLY - NOT FOR CONSTRUCTION.5.THERE ARE NO WETLANDS ON-SITE, AS DETERMINED BY TIMMONS GROUP (REFER TO WATERS OF THE USDELINEATION PACKAGE IN THE ATTACHED NARRATIVE AND CALCULATIONS BOOK).NOTESCOMMENTSDRY DETENTION SCMBYPASS TOANALYSIS POINTQ POST < Q PREPOST-DEVELOPMENT ONSITE IMPERVIOUS CAPTURED IN SCM(2.73 ± ACRES)TIME OF CONCENTRATION FLOW LINENAD 830SCALE 1"=100'200'100'PRE-DEVELOPMENTPOST-DEVELOPMENTPOST-DEVELOPMENT WATER QUALITY SUMMARYOFF-SITE836(SF)836
N.T.S.BIORETENTION STORMWATER CONTROL MEASURE (SCM)1
NOTE
EMBANKMENT SHALL BE CONSTRUCTED OF CLEAN STRUCTURAL SOIL, FREE OF
ROOTS, VEGETATION, ROCKS & OTHER OBJECTIONABLE MATERIAL. SCARIFY
SURFACES BEFORE PLACING FILL. PLACE FILL IN 6-8 INCH LOOSE LIFTS.
COMPACT TO AT LEAST 95% OF THE STANDARD PROCTOR DENSITY.
IMPERVIOUS LAYER TO BE INSTALLED UNDER ALL WATER SURFACES.
REFER TO SPECIFICATION SECTIONS 312000
BMP / WETPOND CONSTRUCTION SHALL BE UNDER THE SUPERVISION OF
THE OWNERS GEOTECHNICAL CONSULTANT.
DAM EMBANKMENT CONSTRUCTION STANDARDS
1.CONTROLLED FILL, AS SPECIFIED BY THE GEOTECHNICAL ENGINEER, IN THE DAM EMBANKMENT SHALL BE PLACED IN 6-INCH LOOSE LAYERS (3-INCH LOOSE LAYERS
WITHIN 3-FEET OF EITHER SIDE OF THE PRINCIPAL SPILLWAY PIPE TO A DEPTH OF 2-FEET OVER THE PIPE) AND SHALL BE COMPACTED TO A DENSITY OF NO LESS
THAN 95% OF THE STANDARD PROCTOR MAXIMUM DENSITY AT A MOISTURE CONTENT OF + OR - TWO PERCENTAGE POINTS OF THE OPTIMUM MOISTURE CONTENT IN
ACCORDANCE WITH ASTM D698.
2.ALL VISIBLE ORGANIC DEBRIS SUCH AS ROOTS AND LIMBS SHALL BE REMOVED FROM THE FILL MATERIAL PRIOR TO COMPACTION TO THE REQUIRED DENSITY. SOILS
WITH ORGANIC MATTER CONTENT EXCEEDING 5% BY WEIGHT SHALL NOT BE USED. STONES GREATER THAN 3-INCH (IN ANY DIRECTION) SHALL BE REMOVED FROM
THE FILL PRIOR TO COMPACTION.
3.FILL MATERIAL PLACED AT DENSITIES LOWER THAN SPECIFIED MINIMUM DENSITIES OR AT MOISTURE CONTENTS OUTSIDE THE SPECIFIED RANGES OR OTHERWISE
NOT CONFORMING TO SPECIFIED REQUIREMENTS SHALL BE REMOVED AND REPLACED WITH ACCEPTABLE MATERIALS.
4.ANY FILL LAYER THAT IS SMOOTH DRUM ROLLED TO REDUCE MOISTURE PENETRATION DURING A STORM EVENT SHALL BE PROPERLY SCARIFIED PRIOR TO THE
PLACEMENT OF THE NEXT SOIL LIFT.
5.SURFACE WATER AND STREAM FLOW SHALL BE CONTINUOUSLY CONTROLLED THROUGHOUT CONSTRUCTION AND THE PLACEMENT OF CONTROLLED FILL.
6.FOUNDATION AREAS MAY REQUIRE UNDERCUTTING OF COMPRESSIBLE AND/OR UNSUITABLE SOILS IN ADDITION TO THAT INDICATED ON THE PLANS. ALL SUCH
UNDERCUTTING SHALL BE PERFORMED AT THE DISCRETION OF THE GEOTECHNICAL ENGINEER AND SHALL BE MONITORED AND DOCUMENTED. IN NO CASE SHALL
THERE BE AN ATTEMPT TO STABILIZE ANY PORTIONS OF THE FOUNDATION SOILS WITH CRUSHED STONE.
7.TREATMENT OF SEEPAGE AREAS, SUBGRADE PREPARATION, FOUNDATION DEWATERING AND ROCK FOUNDATION PREPARATION (I.E., TREATMENT WITH SLUSH
GROUTING, DENTAL CONCRETE, ETC.) MAY BE REQUIRED AT THE DISCRETION OF THE GEOTECHNICAL ENGINEER. ALL SUCH ACTIVITIES SHALL BE CLOSELY
MONITORED AND DOCUMENTED BY THE GEOTECHNICAL ENGINEER.
8.FILL ADJACENT TO THE RISER AND PRINCIPAL SPILLWAY PIPE SHALL BE PLACED SO THAT LIFTS ARE AT THE SAME LEVEL ON BOTH SIDES OF THE STRUCTURES.
9.EARTHWORK COMPACTION WITHIN 3-FEET OF ANY STRUCTURES SHALL BE ACCOMPLISHED BY MEANS OF HAND TAMPERS, MANUALLY DIRECTED POWER TAMPERS OR
PLATE COMPACTORS OR MINIATURE SELF-PROPELLED ROLLERS.
10.COMPACTION BY MEANS OF DROP WEIGHTS FROM A CRANE OR HOIST SHALL NOT BE PERMITTED.
11.HEAVY EQUIPMENT SHALL NOT BE ALLOWED TO PASS OVER CAST-IN-PLACE STRUCTURES (INCLUDING THE CRADLE) UNTIL ADEQUATE CURING TIME HAS ELAPSED.
12.TO RE-ESTABLISH VEGETATION AFTER CONSTRUCTION, A 2- TO 3-INCH LAYER OF TOPSOIL SHALL BE PLACED ON THE DISTURBED EMBANKMENT SURFACE AND THE
AREA SEEDED AND MULCHED OR HYDROSEEDED.
TESTING, OBSERVATION, AND CERTIFICATION
1.TESTS OF THE DEGREE (%) OF COMPACTION OF THE PLACED FILL IN THE DAM SHALL BE PERFORMED AS A PART OF THE PERMITTEE'S NORMAL QUALITY CONTROL
PROGRAM FOR THE CONSTRUCTION OF THE DAM. TESTS SHALL BE CONDUCTED CONCURRENT WITH THE INSTALLATION OF THE COMPACTED FILL AND THE
CONTRACTOR SHALL COORDINATE THE CONSTRUCTION OF THE DAM SO THAT THE TESTING CAN BE COMPLETED. SHOULD THE RESULTS OF THE TESTS INDICATE THAT
THE SPECIFIED DEGREE OF COMPACTION HAS NOT BEEN OBTAINED; THE PORTIONS OF THE DAM REPRESENTED BY SUCH TESTS SHALL BE REWORKED OR REBUILT.
ALL PORTIONS OF THE DAM SHALL ACHIEVE THE SPECIFIED MINIMUM DEGREE OF COMPACTION.
2.CONSTRUCTION OF CLASS A, B AND C DAM EMBANKMENTS SHALL BE DONE UNDER THE OBSERVATION OF A QUALIFIED GEOTECHNICAL ENGINEER, WHO IS
REGISTERED AS A PROFESSIONAL ENGINEER IN THE STATE OF NORTH CAROLINA. THE GEOTECHNICAL ENGINEER MUST HAVE EXPERIENCE IN THE DESIGN AND
CONSTRUCTION MONITORING OF DAMS OF THE SIZE AND SCOPE COVERED BY THESE STANDARDS AND GUIDELINES.
3.ON CLASS A, B, AND C DAMS (WITH THE EXCEPTION OF DETENTION ONLY CLASS C DAMS THAT COLLECT DRAINAGE FROM AN AREA OF 25-ACRES OR LESS), THE
GEOTECHNICAL ENGINEER, AS DEFINED ABOVE, SHALL OBSERVE ALL ASPECTS OF THE CONSTRUCTION OF THE DAM (I.E., PREPARATION OF THE FOUNDATION,
INSTALLATION OF THE CUT-OFF TRENCH, INSTALLATION OF THE PRINCIPAL SPILLWAY PIPE, INSTALLATION OF THE INTERNAL DRAINAGE, INSTALLATION OF
COMPACTED FILL, ETC.). THE FREQUENCY OF OBSERVATION AND TESTING MUST BE SUFFICIENT FOR THE GEOTECHNICAL ENGINEER (OR THE DESIGN ENGINEER ON
CLASS D DAMS AND CLASS C, DETENTION ONLY, DAMS) TO STATE, IN HIS/HER PROFESSIONAL OPINION, THAT THE SPECIFIC ITEMS OBSERVED AND TESTED WERE
INSTALLED IN ACCORDANCE WITH THE APPROVED CONSTRUCTION DRAWINGS AND SPECIFICATIONS. REFERENCE IS MADE TO THE CITY OF DURHAM “
”
PLANTING SOIL BED MIXTURE
SOLUBLE SALTS
P-INDEX
FINES (SILT AND CLAY)
SAND
pH RANGE
500 PPM MAXIMUM
9% (ACCEPTABLE RANGE: 8-15%)
82% (ACCEPTABLE RANGE: 75-85%)
10-30
5.2 TO 7.00
ORGANIC MATERIAL (PINE BARK FINES)9% (ACCEPTABLE RANGE: 5-10%)
LANDSCAPE WARRANTIES SHALL APPLY TO BIORETENTION AREA PLANTINGS.
CONTRACTOR SHALL BE RESPONSIBLE FOR MAINTENANCE UNTIL SUBSTANTIAL COMPLETION
AT WHICH TIME OWNER WILL ASSUME MAINTENANCE RESPONSIBILITY.
BIORETENTION AREA MAINTENANCE SCHEDULE
METHOD
SPECIFICATIONS
SEE PLANTING
OR BY HAND
MECHANICAL
BY HAND
MECHANICAL
INSPECT AND REPAIR
DAYS AFTER PLANTING
FOR 14 CONSECUTIVE
AND END OF EACH DAY
WATER PLANT MATERIAL
PLANTS NOT TO BE REMOVED
TREAT ALL DISEASED
TREATMENT
CONSIDERED BEYOND
DISEASED VEGETATION
REPLACE ANY DEAD OR
EROSION
DESCRIPTION
ALLMONTHLYVISUAL
MAR 15 - APR 30
OCT 1 - NOV 30
TWICE PER YEAR
WHENEVER NEEDED
IMMEDIATELY AFTER
COMPLETION OF
MONTHLY
PROJECT
ALL
N/A
ALL
GRASS
FREQUENCY
SOIL
SEASON
OUTLET STRUCTURE
SCALE: N.T.S.
1"/HOUR MIN, 6"/HOUR MAX.
1-2"/HOUR PREFERRED
PERMEABILITY
BIORETENTION SECTION
4'-0"
OUTLET
NON-WOVEN FILTER FABRIC
TOP OF SOD ELEV= 426.00'
12" SHALLOW PONDING
RIM ELEV= 427.50'
N.T.S.
BIO-RETENTION AND EMBANKMENT SECTION
3
1
10'
IMPERVIOUS FILL
COMPACTED
TOP OF EMBANKMENT ELEV.: 429.00'
UNDERDRAIN INV ELEV.: 422.50'18" RCP WITH RUBBER GASKET (ASTM C-443)
SCALE: N.T.S.
3
1
1
1
RIM ELEV: 427.50'
TOP OF SOD ELEV: 426.00'
FOLLOWING FULL STABILIZATION OF THE SITE AND APPROVAL BY NCDENR INSPECTOR AND
REMOVE PERIMETER SILT FENCE AND STABILIZE RESULTING DISTURBED AREAS.
SILT FENCE BELOW TRAPS AND BASINS SHALL REMAIN IN PLACE UNTIL CONVERSION TO
PERMANENT FACILITIES AND FINAL STABILIZATION ARE COMPLETE.
THE SITE ENGINEER, CONVERT SEDIMENT BASINS AND TRAPS TO FINAL BIO-RETENTION
FINE GRADE INTERIOR OF DEVICE.
REPAIR ALL REMAINING DISTURBED AREAS WITH SOD OR RE-SEED AND COVER
PERFORM GRASS MAINTENANCE UNTIL FULL COVERAGE IS OBTAINED.
AREAS AS FOLLOWS:
REMOVE ACCUMULATED SEDIMENT AND EXCAVATE TO SUB DRAIN ELEVATIONS,
BIO-RETENTION AREA CONSTRUCTION SEQUENCE
DISPOSE OF EXCAVATED MATERIALS AND SEDIMENT OFF-SITE.
PLACE PLANTING SOIL MIX IN DEEP, UNCOMPACTED LIFTS STARTING AT FAR END OF
DO NOT LEAVE STONE EXPOSED WITHOUT FILTER FABRIC COVER.
STAND OF VEGETATION.
ENSURE ENTIRE PERIMETER OF BIO-RETENTION AREA IS STABILIZED WITH A HEALTHY
REPAIR ANY DAMAGED VEGETATED PERIMETER AREAS WITH SOD OR RE-SEED AND
COVER WITH EXCELSIOR SLOPE PROTECTION MATTING. INSTALL SILT FENCE AS NEEDED
TO KEEP ANY SEDIMENT FROM DRAINING INTO EXCAVATION.
CELL TO AVOID PLACING EARTH MOVING EQUIPMENT ON PLACED SOIL. NO HEAVY
EQUIPMENT SHALL BE ALLOWED ONTO THE PLANTING SOIL.
INSTALL ALL PLANT MATERIAL BY HAND.
FINE GRADE SURFACE PLANTING SOIL BED BY HAND.
PLANTING SOIL BED.
INSTALL RIPRAP ENERGY DISSIPATERS WITHOUT PLACING HEAVY EQUIPMENT ON
REMOVE FAIRCLOTH SKIMMER AND PATCH HOLE.
WITH SLOPE PROTECTION MATTING.
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
AS-BUILT SURVEY REQUIREMENTS
SPILLWAY WEIR: 428.00'
SOD WITH CELEBRATION
BERMUDA
10-IN #57 WASHED STONE
(3" MIN. ON TOP AND SIDES)
SHWT ELEV= 420.00'
INV ELEV.: 422.5'
12" UPTURNED ELBOW
FOR IWS
SUB-DRAIN 6" SCH 40 PVC
PERFORATED PIPE
2-IN WASHED SAND
30-IN PLANTING SOIL BED
PLACE IN 10" LIFTS
LOOSELY COMPACTED
INSTALL SLOPE PROTECTION MATTING ON ALL
SLOPES STEEPER THAN 6:1 AND FLOOR OF POND
PROTECT PLANTING SOIL WITH PERIMETER SILT FENCE AND A TEMPORARY
COVER OF NON-WOVEN DRAINAGE (FILTER) FABRIC UNTIL COMPLETE SITE
STABILIZATION IS ACHIEVED.
REMOVE SILT FENCE AND DRAINAGE FABRIC AND INSTALL MULCH AND PLANT
MATERIAL ONCE SITE IS COMPLETELY STABILIZED WITH PERMANENT GROUND
COVER.
NOTES:
-PLANTING MEDIA FOR BIO-RETENTION SHOULD BE UNIFORM FREE OF
STONES, STUMPS, ROOTS OR OTHER SIMILAR MATERIAL GREATER THAN 2
INCHES AND MEET THE SPECIFICATION NOTED ABOVE.
-SM, ML, SC SOIL CLASSIFICATIONS (USCS)
-SOURCE OF PLANTING SOIL BED MIXTURE: TRIANGLE LANDSCAPE SUPPLIES
-PROTECT PLANTING SOIL WITH PERIMETER SILT FENCE AND INSTALL SOD
ON SIDE SLOPES.
-REMOVE SILT FENCE AND DRAINAGE FABRIC ONCE SITE IS STABILIZED
WITH PERMANENT GROUND COVER.
-INSTALL PLANT BED SOIL ONCE THE SITE IS STABILIZED AND THE
BIO-RETENTION AREA IS NO LONGER UTILIZED AS A TEMPORARY
SEDIMENT BASIN.
-PLACE IN 12-18" LOOSE LIFTS, LOOSELY COMPACTED
WITH BACKHOE BUCKET.
-PEFORATED SUB-DRAIN PIPES SHALL HAVE A MINIMUM OF 4 ROWS OF
STAGGERD PERFORATIONS EQUIDISTANT AROUND THE PERIMETER OF THE
PIPE, PERFORATIONS IN EACH ROW SHALL BE SPACED 6-IN O.C.
PERFORATION SHALL BE 3/8" DIAMETER.
12" UPTURNED ELBOW
FOR INTERNAL WATER
STORAGE LAYER
18" TO
SURFACE MIN.
(424.00)
INSTALL SUBDRAIN PIPING WASHED STONE DRAINAGE LAYER AND FILTER FABRIC.
OUTLET
BARREL
RCP PIPE
DIA=18"
OUTLET BARREL
18" RCP PIPE INV.
ELEV.: 422.304'-0"4'-0"5" MIN. WALL (TYP)
PLAN VIEW SECTION X-X SECTION Z-ZSECTION Y-Y
YYX
XZZOUTLET
BARREL
RCP PIPE
DIA=18"
5" MIN. WALL (TYP)
5" MIN. WALL (TYP)
5" MIN. WALL (TYP)
ELEV.:422.50
UNDERDRAINS
OUTLET BARREL
RIM ELEV.: 427.50
4'-0"4'-0"
4'-0"5"16"16"5"16"5"ADDITIONAL CLASS B
CONCRETE IN BOTTOM OF
STUCTURE
ADDITIONAL CLASS B
CONCRETE IN BOTTOM OF
STUCTURE
EMBANKMENT
EMBANKMENT
SLOPE
PEAKED ROOF TRASH RACK
MATERIAL: ALUMINUM WITH 25
YEAR DESIGN LIFE
6"6"2'-6"4'-10"
3" x 3" OPENINGS
(6) 1/2" X 4"
STAINLESS STEEL
BOLTS PER SIDE (TYP).
WELDED ALUMINUM BAR GRATING
3" x 3" OPENINGS
PEAKED ROOF TRASH RACK
A:MATERIAL: ALUMINUM WITH 25
YEAR DESIGN LIFE
PEAKED ROOF TRASH RACK
A:MATERIAL: ALUMINUM WITH 25
YEAR DESIGN LIFE
WELDED ALUMINUM BAR GRATING
3" x 3" OPENINGS
WELDED ALUMINUM BAR GRATING
3" x 3" OPENINGS
STAINLESS STEEL
BOLTS (TYP).
30" x 24" LOCKABLE ACCESS
HATCH WITH HINGES
6"6"2'-6"1/2" STEEL PLATE
(6)1/2" X 4"
STAINLESS STEEL
BOLTS PER SIDE (TYP).
BOTTOM OF MEDIA
ELEVATION = 422.50
6" UNDERDRAIN INV. ELEV.:422.50
ELEV.:422.30
3 1
SEED & MULCH EMBANKMENT SEE SEEDING SCHEDULE
(INSTALL SLOPE PROTECTION MATTING ON ALL SLOPES
STEEPER THAN 6:1)
INV IN=419.90
PROPOSED MANHOLE
C2 (SEE SHEET C4.0)
ONE CONC. ANTI-SEEP COLLAR (6" WIDE)
UNDER CENTER OF EMBANKMENT2-FT2-FTIMPERVIOUS FILL
COMPACTED
BARREL OUTLET
INV ELEV.: 422.30'
UPTURNED ELBOW
ON 6" UNDERDRAIN
PIPE (4)
SOD ELEV.: 426.00SOD ELEV.: 426.00SOD ELEV.: 426.00
UPTURNED ELBOW
ON 6" UNDERDRAIN
PIPE (4)
COMPACTED
SUBGRADE
(SEE SPECS)
OUTLET STRUCTURE & SPLITTER BOX NOTES:
1.
2.
3.
OF THE BOTTOM SLAB.
4.
ALL STRUCTURES OVER 3'-6" IN DEPTH TO BE
CLASS "A" (3,000 PSI) CONCRETE TO BE USED.
PROVIDED WITH STEPS 1'-2" ON CENTERS. STEPS
SHALL BE IN ACCORDANCE WITH STANDARD 840.66.
FORMS ARE TO BE USED FOR THE CONSTRUCTION
ALL MOTOR JOINTS ARE 1/2" ± 1/8"
OUTLET STRUCTURE
6"PVC 24" MIN.24" MIN.6" PVC END CAP
6" PVC TEE
ANCHOR
DRAWDOWN
PIPE TO WALL
WATERTIGHT
NON-SHRINK
GROUT
ANTI-SEEP COLLAR
ENLARGEMENT
UNDERDRAIN ELBOW
ENLARGEMENT
6" PVC
UNDERDRAIN
INV=422.50
24"
RCP
12"
PVC CLEANOUT 2' ABOVE
PLANTING SURFACE WITH
GLUED FITTINGS AND
SCREW CAP (TYP.)
CONVERT TO 6" SOLID WALL
PVC PIPE PRIOR TO ENTERING
THE OUTLET STRUCTURE (TYP.)
SCALE: N.T.S.
EMERGENCY SPILLWAY SECTION
3 1
8-FT WEIR WIDTH
SPILLWAY CREST ELEV: 428.00
12-IN THICK CLASS B
RIPRAP OVER FILTER
FABRIC
31TOP OF EMBANKMENT ELEV: 429.00
1-YR STORM ELEV=427.49
2-YR STORM ELEV=427.64
10-YR STORM ELEV=427.69
100-YR STORM ELEV=427.73
CONTRACTOR SHALL PROVIDE SIGNED, SEALED AND DATED AS-BUILT
SURVEY PLANS PERFORMED BY A PROFESSIONAL LAND SURVEYOR THAT
INCLUDES THE FOLLOWING:
·BIO-RETENTION AREA DIMENSIONS
·AREA OF BERMUDA SOD
·ELEVATIONS
·SIDE SLOPES
·BENCHMARK FOR CLEANOUT
·INLET DEVICES AND ENERGY DISSIPATERS
·OUTLET STRUCTURE INVERTS
·ORIFICE DIAMETER
·PIPE SIZES
·CLEANOUT LOCATIONS AND ELEVATIONS
·PLAN AND CROSS-SECTION VIEW AT A SCALE OF 1"=30' OR LARGER
·CROSS SECTION
·TOPOGRAPHY SHALL EXTENDED TO 20 FEET OUTSIDE LIMITS OF
BIO-RETENTION AREA.
CONTRACTOR SHALL PROVIDE SPECIFICATION SHEETS FOR MATERIALS USED
IN THE SCM SUCH AS PLANTING MEDIA, FILTER MEDIA AND AGGREGATE.
MOW GRASS ONCE ESTABLISHED AS
NECESSARY TO MAINTAIN PLANT HEALTH
VALVE
INV.: 426.00
BIORETENTION
PLANTING SOIL
JOB NO.
SHEET NO.
SCALE
DESIGNED BY
CHECKED BYDATEDRAWN BY
DATEREVISION DESCRIPTIONYOUR VISION ACHIEVED THROUGH OURS.5410 Trinity Road, Suite 102 | Raleigh, NC 27607TEL [phone] FAX [phone] www.timmons.comTHIS DRAWING PREPARED AT THERALEIGH OFFICEN O R T H C A R O L I N
AP R O F E S S I O N
A
LE N G I N E E R
0 3 3 6 1 2N O R T H C A R O L I N
AP R O F E S S I O N
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AP R O F E S S I O N
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S E A LN O R T H C A R O L I N
AP R O F E S S I O N
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AP R O F E S S I O N
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LE N G I N E E RF R
A N C I S S L I N S K Y, I I I24 JULY 2020
NORTH CAROLINA NATIONAL GUARD JFHQ RALEIGH HELIPAD1636 GOLD STAR DRIVE, SUITE 2600, RALEIGH, NORTH CAROLINA 27607 | NCSCO CASE #: 17-16713-01A42866
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NORTH CAROLINA LICENSE NO. C-16526/24/20
STORMWATER FAST TRACK ATC SUBMITTAL06/24/2020C5.7 BIORETENTION NOTES & DETAILS